Paper-bag machine.



EL L. HIRSGH z W.' BLACLSTOGK. PAPER BAG MAUENE.

APPLIGATE FI' l SHEETS-SH INI/ENT@ M. L. HIRSCH @L G. W. BLACKSTOGK.

PAPER BAG MAGHlNE.

APPLICATION FILED PEB. 21, 1912.

Patented Feb. 18, 1913.

14 sHEBTs-sHEBT 2.

memes?.

we, f --.mmm HM m m A nm l NM e u e. a. .e e e AWJTNESS M. L. HIRSGH G. W. BLAGKSTOUK.'

PAPER BAG MACHINE. l l

d n? .um APPLICATION FILED PEB. 21, 1912. 1l., y 1118111911 191.1111913.

14 SHEETS-SHEET 3.

M. L. HIRSGH L G.

W. BLAGKSTOGK,

PAPER BAG MAGHlNE.

APPLICATION FILED FEB.21,1912.

Patented Feb.18,191:.

14 SHEETS-SHEET 4.

W/NEsSES @vC/wam M. L. HRSGH L G. W. BLACKSTOOK.

- MEER BAG MAoHlNB.

APPLICATION FILED FBB.21, 1912.

f Patented F@b.;18,1913.

14 SHEETS- SHEET 5.

Z2 Z5Y '27 www f M. L. HIRSGH & G. W. BLACKSTOCE PAPER BAG MAGH1NE.

APPLICATION FILED PEB.21, 1912.

Patented Feb. 18, 1913.

14 SHEETS-SHEET 6.

WJTNESSES www UTS/gw i M. L. HIRSCH & G. W. BLACKSTOGK. PAPER BAG MAGHENB.

APPLICATION HLED man, 1912.

Patented Fab. 18,1913,

14 SHBETSSHEET 7.

w1. L. HIRSGH & G. W. BLACKSTOCK.

PAPER BAG MACHINE.

APPLICATION FILED IEB.21, 1912.

Patented Feb. i8, 1913.

14 SHEETS-SHEET 8.

MWNW@ f1 HAC/555 M. L. HIRSGH d; G. W. BLACKSTOOK. PAPER BAG MACHINE.

APPLICATION IILBD PEB.21,1912. 31,053,947. Patented Feb. 18, 1913.

14 SHEBTS-SHEET 9. 236' ZZ/5175.!

WJ A755555 gaga-,9%. 5

M. L. HlRsCH L G. W. BLAGKSTOGK.

PAPER BAG MACHINE.

APPLICATION FILED 1"EB.21.1912.

Patented Feb. 18, 1913.

14 SHEETS-SHEET 10.

[fl/771ML: 5 5 E S /NVENTORS M. L. HIRSCH & G. W. BLAGKSTOGK.

PAPER BAG MAGHlNE.

APPLIGATION PLED 121311.21, 1912.

L?. Patented Feb.18,1913.

Fig.

14 SHEETS-SHEET 11.

M. L. HIRSGH &'G. W. BLAGKSTOGK.

PAPER BAG MACHINE.

APPLICATION FILED 1131121.19111.

Patented Feb. 18,' 1913.

14 SHEETS-SHEET l2.

WYTAVES M. LEHRSGH G. W. LLAQLSTOGI PAPER BAG MAGENE. APPLIGATLQN ULEB F5321, 1912.

Patented Feb, i8,

lll SHEETSSHEET 13.

MTN/25555 /xam [VL L. HRSOH d; G.v W. BLAC'KSTOGK.

PAPER BAC- MACHINE. APPLICATIQN FILED PEB. 21, 1912.

, n atented Feb. 13, i913.

14 SHEETS-SHEET 14.

UNITED STATES PATENT EEroE.

MONTEFIORE L. HIRSCH AND GEORGE W. BLACKSTOCK, 0F BALTIMORE' MARYLAND, ASSIGNORS, BY MESNE ASSIGNMENTS, TO SAID HIBSCH.

PAPER-BAG MACHINE.

Specification o'f Letters Patent.

Patenten ree. is, isis.

To all whom z' 'may concern -Be it known that we,MoNTnr1onE L. Husson and GEORGE lV. BLACKsTooK, citizens of the United States, residing at Baltimore, in the State of Maryland, have invented new and useful Improvements in'. Paper-Bag Machines, of which the .following is a specification.

Our invention pertains to paper bag machines; and it has for its object to provide a. highly eflicient machine designed more particularly for manufacturing in a iinished manner paper 'bags of what may be said to beta self-standing square type, this because the bags when opened will have square bottoms and will be capable of standing in upright position, of themselves, before and during the lilling thereof.

Many features of our invention will be found well adapted for use in machines for making paper bags of types different from that mentioned, and it will be iinderstood that it is our intention to protect herein the said featiues irrespective of the kind of paper bag machine in 'which they are ern'- bodied.

The invention in all of its details will be I fully understood from the following descriptin .and claims when 'the same are read 1n connect-ion with the drawings,` accompanying and forming part -of this specitication, in which: i i

Figure 1 is an elevation of one side of the machine constituting vthe best practical embodinient of our invention that we have as yet'devised. Fig. 2 is an enlarged view of part of the opposite side of the machine. Fig. 3 is a diagrammatical view showing certain parts of the machine.' Fig. 4 isv an rear end of the machine; the web roll being shown in'diametrical sect-ion. Fi 6 is a detail'section on I. the line 6-6 o Fig. 5. Figs. f7 and 8 are enlarged detail sections hereinafter specificallyreferred to. Fig. 8, is a detail View taken ata right angle to Fig. 5, and showing thefrction bearing for shaft 1. Fig.- 9 is. an enlarged detail perspective showing the manner in which certain elements or the machine operate on a bag length. Figs. 10 and ll are enlarged details hereinafter set forth. Figs. 12 and 13 are Ydetail views of the means for forming the continuous web or strip of paper into a tube having side bellows or inward tucks. Fig. 14 is an enlarged detail perspective of the rotary device for forming t-he thumb hold recesses or openingsfin the tube at intervals in the length thereof. Figs. 15 and 16 are details of the printing means comprised in the machine. Fig. 17 1s a vertical section showing the cylinder and certain parts carried thereby atwthe left-hand side thereof, looking forward; it being understood that the cylinder'is correspondingly equipped at its opposite or right-hand Figs. 18 to 22, inclusive, are detail side. views illustrative of the means for actuating the bag grippers carried by the cylinder; Figs. 1S and 19 showing the cams and the. arms coperating with the cams, located adjacent the right-hand side ofthe machine looking forward, and Fig. 21 showing the cam and arms cooperating therewith, located adiacent the left-hand side of the machine. In other words, the View pointfrom which Fig. 21y is taken is at the right hand or'gear side of the machine. whilffthe view point at which Figs. 18 and 19 aretaken is at the left-hand side of the machine-2. e., The side opposite the gear s' e. Fig. 23 is a plan showing the combined paste-apnlving and ing roll which constitutes animportant feat-ure of our invention. Fior. 24: is 'a detail perspective of part of the beltshifting means comprised in the *machine Fig. 25 is a. longitudinal vertical section of so much of a paper bag machine as is necessary to show a modification of our invention; some ofthe parts of said view being in elevation. F ig. 26a isa detail of a driving connection in the modification. Figs. 26 and 27 are front elevations'of the modiication. lFig.'28 is a view showing certain details of the 'superposed cylinders of the modiication. 'Fig 29 is another detail of the upper of said cylinders. Fig. 30 is a detail of a cam that cooperates with parts on the lower of said 'cylinders View showing the ginner side of one of the stationary cams that coperate with other Fig. 31 is a' bag length around with thecylinder.

, the purpose of our invention.

- adjustable endwise of the shaft and is on the drum 5 and the`retardation of the '.roll 2 -is lessened as the roll is diminished in ,fthe abutment?) and thereby fixed with respect to the shaft 1 by a 4 11'*l of 4the shaft lfto hold the plug against outward movement. Obviously in positioning the plug 9,

.the plugl willbe strongly and safely held lsuperposed cylinders. Fig. 38 is a detail of .'entially-groove Iportion of shaftl s parts on the lower ofsaid cylinders. lFig. 32 is a detail view showing one ofthe tuckers and the pair of bag-engaging blades on the lower of the cylinders. Figs. 33 and 34 are detail views showing the cooperation of the saidlsuperposed cylinders. Figs. 35, 36 and 37, are detail Views of the upper of said the, upper of the superposed cylinders s howing one of the means thereon for carrying a Similar numerals designate corresponding parts in Figs. 1 to 24 of the drawings, to which reference will rst be made.

The main frame of the machine may be of any construction and design consonant with backed byanadjusting wheel 4, threadedv on the shaft.

At 5 the shaftl has fixed thereon a friction drum-*which bears partly in a fixed block 6 and partly in a movable block 7, backed by a screw 8. By turning the screw 8 outward to' permit of movement of the block 7 away from the .block 6, the friction diameter andthe' leverage lexerted -by the pull of the paper ofi the rollis decreased.

In this way the paper strip or web drawn olf the roll may always be kept under proper tension to assure perfect working of the machine. y y

The paper roll 2 is tightly held against plug 9, adjustable lengthwise on the shaft. This plug 9 is kerfed at 10, and .in the said kerf is pivoted a 'pawl 11 whichv serves by engaging teeth it is. simply 'necessary for the operator 'to move the same inward to the extent desiredand seatthe pawl 11 in one of the interdental spaces of the shaft whenv against outward movement.

For the purpose of adjusting the shaft l and thefpaper roll 2 lengthwise and adjustably fixing the roll in proper alinement with the bag-forming .elements hereinafter described, we provide a notchedand laterally movable bearing 12 in which the circumfer- -periphery of which is held by notaba? seated, and'we also provide an adjusting` screw 14 that' is threaded in the adjacent portion of the main frame and is journaled 14 in onevdirection, the shaft 1 and roll 2 will be moved as a unit toward the' right and by turning the -screw in the ,other direction the shaft and roll will be similarly moved v toward the left.

From the roll '2 the strip or web of paper is passed upward in front of and over an idler roll 15, and is then passed back of and over'and forward from a second idler roll 16. Located in a horizontal plane below that of the roll 16 is a cross-rod 17, and resting removably -on said cross-rodare the bifurcated supports. 18 of a paste receptacle 19. Mounted in the paste receptacle "and projecting therefrom is a rotary disk 20 the the gravitation of the receptacle 19 against the paper as the same passes the roll 16; t-he said receptacle being adapted to swing forward on the. rod. The disk 20 4is provided at intervals in its periphery with notches 21, and

plate 23 that is fixed to the front wall of the receptacle 19, this in order to enable the 'plate to remove excess .paste from the disk.

The disk 2O has for its function toapply paste to the strip or web' of paper adjacent one edge thereof. with a v'iew of 4contributing to the formation of the web into a tube as hereinafter described. The notches 21v in the disk serve the important purpose of mincing any paste lumps that may be taken up by the disk, and in that way assure the proper initial application of paste to the web of paper.

'it moves through the bifurcation 22 of a l After passing over the rpll 16 the web of Y paper is formed into a tucked tube-c'. e., a tube having inwardly extending side folds, by simple andreliable means which will now be described; the said means serving the purpose stated while the swiftly drawn forward so as not to detract web is being from the capacity of the machine. The said.' means vcomprises a lower longitudinal-central plate 25 which is connected through a ,han er 26 with a transverse frame bar 27 and' as an upturned rear end 28, an upper longitudinal-central plate 29 spaced from the plate 25, tucking plates 30 extending from opposite sides into `the space between the plates 25and 29, upright spaced bars 28 rising from the plates 30- and having convex opposed sides, a blade 31 that extends forward andinward from the right-hand side of the path of the paper and immediately over the paper thickness to which the paste-bearing edge is connected, .and pressing wheels 32 each of which bears `on one of the upper thicknesses of the tube. After the web of paper passes over the roll 16 it is the paper e tertering tarding drawn forward in channeled form, with the bottom of the channel under the plate 25, and the side walls of the channel at opposite sides o'tthe hanger 26 and between the uprights 2S and also between the tucking plates 30, after which one of the upper thicknesses passes under vthe blade 31 and both upperthicknesses pass under the pressing wheels 32, after which the tube is carried between driven drawing rolls and 34. In this way the continuous tucked tube is expeditiously and properly formed incidental to the swift forward movement of the web of paper; the wheels 32, forwardly converged, crowding the paper inward on the forming plates.

For the purpose'of forming openings in the lower `thickness or wall of the tuben which opening will form thumb-holes at". the mouths of the bags when the same are eut from the tube), we provide the driven rotary device 35 which works through an opening in the plate 25, Fig. 13. This device comprises a suitable body, toothed cutting blades 36, arranged in a curved manner, and resilient fingers 37 which have for their function to press the paper away from the toothed blades 363-11 e., to prevent adhering` to said blades and inwith'the smooth and continuous operation of the machine.

n order to print any desired inscription upon the lower side of the .tube at points adjacent thecurved cut-s or recesses in the lower thickness of the tube, we prefer to provide the upper draw roll with an elastic bed and the lower draw roll 34 with atype form 40, and we also prefer to supply an adequate quantity of ink to the said form 40 through the medium of an lnlting roll 4l, which roll 41 is supplied 'with ink a fountain roll 42. These elements are best shown in Figs. l5 and 16, and will be hereinafter speciiically described.

Stifter passirgg between the draw' rolls 33 and 34, 'the tucked tube passes between re-y rolls 43 and 44, which retarding rolls are. driven. These rolls 43 and 44 are termed retin-ding rolls because they bring about a slaclrening or slightbucklingv of the` paper tube between themselves and the cutting-oft1 means, and in that way contribute materially 1and finished cuts at the bags. said slackenine or buckling 'of the paper tube as stated by reason of the roll 43 being provided with a blade -45 and the roll 44 being provided with a kerf 46 complementary tothe blade and into which a portion of' the tube is pressed by a blade. hen the said pressed or deflected portion of the time is released from and moves forward of the rollsz43 andA mentioned slack ,or bucklingof the"tube.

mouth end ,of the inder.

to the sure product-ion of neatrlhe rolls43 and 44 bring aboutthe 44, it creates the.

This latter will be appreciated as an important advantage when it is stated that experience has demonstrated that the bags cannot be cut in a neat and finished manner from the tube when the tube is taut or under tension.

The plates 25 and 29 have their forward ends converged and extended to a point im! mediately in rear of the meeting' portions of the draw rolls 33 and 34 so as to assure the proper passage of the tube between said rolls.

In passing to and forward from the rolls 43 and 44 the paper tube moves on side by side plates 4T which have a space between their inner edges to permit the described operation of the retarding' rolls, and said plates 47 also extend forward to points above the cylinder 48, which constitutes one of the most important' features of our invention, and back of the Vertical center of the cyl- Located above the vertical center of the cylinder 48 and supported in the main frame of the machine is a roll 49. The said roll 49 is equipped with a tucking' blade 50, and is also equipped with two blades 51. having toothed edges 52; the said blades being carried by levers 53 that are fulcrumed at 54 and are returned to and held in their normal idle positions by coiled springsA At their outer ends the levers 53 are provided with anti-fricticn rollers-56, and these latter at the proper point in the revolution of the roll 49 wipe past tappets 60 which are preferably, though not necessarily, car ried by brackets 6l that are adjustably connected to the main frame. By virtue ofI this it will be manifest that when the anti friction rollers 56 wipe or pass over the tap pets 60, the blade-bearing' arms of the levers 53 will be sharply moved toward the center of the cylinder 48, and in consequence a bag length will be cut in a shearing manner from the paper tube. This cutting' of the bag length in a shearingr manner constitutes an important feature of our invention since it 'assures the production of a finished cut which in no way will detract from theA appearance 'of -the mouth ends of the completed bags. After the anti-fric tion rolls 56 are clear of the tappcts 60,

the springs 55 promptly 'return the. levers and the blades to their normal positions'a'nd thereby preclude the possibility of the blades interfering with the smooth and continuous operation of the machine. At this point we would'say that: While we prefer to return the levers and the blades to the idle positions through the medium of springs`55, we do not desire to be understood as confining ourselves to springs for the specitic pur- Dose stated, inasmuch as othei means may bevprovided wit-hout involving departure from the scopefof our invention as claimed.

The tucking blade 50 and the shearing blades 5l are relatively arranged, as shown in Fig. 17, for a purpose hereinafter set forth.

The cylinder 48 in the present embodiment of our invention is provided with sii; groups of features or organized mechanisms for handling bag lengths, but we would here have it understood that the cylinder may be provided with any number of such groups of features or organized mechanisms without involving departure from the spirit of o ur vclaimed inventin.

Formed in the periphery of the cylinder 48 and extending continuously around the same is a central groove 62, and at equidistant points or places inthe periphery of the cylinder are formed' or provided siX groups ofl features such as shown in the middle of Fig. 4. These groups of features are identical, and therefore a detailed description of the group in the gure' just mentioned and the elements that' coperate therewith, will su'tlice to impart a denite understanding of all. The group of fea tures to which reference is made comprises a recess 63 in communication with the aforesaid groove 62, and also in communication with a transverse oove 64. The timing of the parts is suci that the groove 64 of each group of features will receive the shearing blades 5l on the roll 49, and the groove 65 of each group of features will receive the tucking blade 50 on said roll 49 vduring the operation of the machine. The

groove 64 is arranged in front of the groove 65 with reference to the direction in which the cylinder 48 rotates, and between the groove 64 and the groove 65 is a groove 66. Back of the groove 65 is a groove 67. In the grove 66 is what will hereinafter be denominated the first gripper 68, which grips backward, and in the groove 65 is the second gripper 69, which grips forward, while in the groove 67 is the third'or rear gripper 7 0, which also grips forward. The backward gripping of t-he first gripper and the forward gripping of the third or rear gripper is an important feature since it precludes tearing of the bag length, and in that way contributes to the'reliability of the machine. Each of the grippers 68, 69 and 70 is provided with a central notch 71 which registers with the groove 62 so as not to interrupt the continuity of the latter. Each of the mentioned groups of features connn'is'es pairs of lateral rods 72 at opposite sides of the series of transverse groups of grippers, two' carriages`78 movable laterally on said rods at opposite sides of the cylinder 48, and blades 74 and 75 carried by the said carriages, there'being one blade 74 and one blade 75 to eachl carriage. The carriages are similar in construction, and the blades 74`and 75 of one carriage are similar to theblades 74 and 75 of the carnotant? riage at the opposite side of the cylinder 48. Therefore a detailed description of the carriage and the blades 74 and 75 will sulice to imparta definite understanding not only of I said carriage and blades, but-of the complementary carriage/and blades at the opposite side of the 'cylinder 48. Theblade 74 is carried by a lever 76 fulcrumed at 77 to swing away fromand toward the 'center of movement of the cylinder, and provided with an inwardly extending rod 78, Fig. 11.` The rod 78 serves to move the lever 76 and. the blade 74 out-ward'when said rod is actuated by a cam hereinafter described, and the lever and the blade are strongly though yieldingly moved inward by a spring 79, Fig. ll, which directly engages the rod 78. The blade 74 is arranged in front of the blade 75, with reference to the directionof rotation of cylinder 48, and said blade is carried by a rock-shaft 80 having a pinion 81 on its outer end intermeshed-with a gear sector 82, which `gear sector forms one arm of a lever, the other arm of which is equipped with a lateral projection 83 movable by a cam hereinafter described. The purpose of the said mechanism is to swing the blade 75 from a superposed position on the blade 74 backward to the position shown in Fig. 9, and when the lateral projection 83 is so disposed relative` to the mentioned cam as to permit, the blade 75 is swung back to a superposed position on the blade 74, the latter movement being accomplished by a trsion spring 84 which surrounds the shaft 8O and is connected at one end thereto and at its opposite end to the carriage 73. It will be understood here that the said spring 84 is put under tension by the described positive movement of the blade 75 backward,l and hence when forward swing ing .movement of the' blade 75 is permitted, the spring expands and in that way accomplishes said movement of said blade 75. Disposed in front of the cylinder 48 are stationary, curvilinear retaining rods 85, and disposed in front of the roll 49 that carries the tucking blade 50 and the shearing blades 51, is a stationary back 86. Movable forward and rearward in front of the back 86 is an oscillatory ironer or smoother 87, which is preferably shaped as shown. Mounted infront of the said ironer or smoother 87 is a shaft 88 on which is tired,A

circumferentially grooved pulley 89, equipped with opening arms 90. ,Around the said pulley 89 passes a band 91 which also passes around ay grooved roll 92 that is smaller irl diameter than the pulley 89, and is arranged nearer the perimeter of the cylinder 48 than the said pulley 89. At this point it is well to state that the pulley 89 is driven faster than the cylinder 48 for a purpose'hereinafter set forth. lt will be remembered that the purpose of tarding action of the said iron or smoother pers 68, (39 and 70, and the blades 74 and 7 5 of each group of' features appurtenant to the cylinder 48, we will describe in detail how each group of features operates on a bag length in combination with the smoother or ironer 87, the back 86, the arms 90 and the band 91., 1n the first place, while the blades 75 are superposed on the blades 74, and the said blades are approaching the point above the vertical center of the cylinder 48, the said super-posed blades are slightly raised to carry them beyond the periphery of the cylinder. Then during the time of the action of the middle gripper 09,`

the blades 74' and 7 5 in superposed relation are, further slightly moved or raised beyond 'the periphery of the cylinder and then are fully advanced into the side tucks or bellows of the bag. T hen immediately after the action of the gripper 69 the blades 74 clamp the lower parts of the bellows of the bag against the periphery of the cylinder. Im mediately following this, the blades 7 5 are swung backward from their position on the blades 74 tovlay back the top portions of the bellows, and in this way the bottom of the bag is opened. Then the ironer or smoother 87 serves the two-fold function of completing the opening of the bottom, that is it smooths the top or rear portion of the bottom, and then withdraws or moves forward to a point where it engages and retards the rear portionvof the bottom precedent to the closing of the bottom. Prior to the said re- 87, the revolving arms 90, operat-ing faster than the cylinder 48, lay down the tongue 93 and the portion of thebag -carrying the same,

so as to assure the uninterrupted movement forward of the said tongue and portion with the cylinder 48 and under the retainers 85, and also under the stretchaof the belt that is opposed to the periphery of the cylinder 48. J ust prior to the taking hold of the-incomplete bag bottom by the forward gripper 68, the blades 74 are withdrawn outward from the bellows or tucks in the sides of the bag length. After withdrawal of saiid blades, the rear gripper having operated or gripped the bag, the blades 75 (which were withdrawn with the blades 74) are swung forward by the springs 84 to the firstnamed positions on the blades 74. At this time the bag bottom is held by the forward gripper 68, the middle gripper 6.9 and the i rear gripper 70. vvThen the rear gripper 70l releasing the bottom, and paste having been applied by] means hereinafter described, to the inner sides of the front wall and Vrear wall and major portionl adjacent the forward end of the bag, the sweeps, hereinafter described, lay down the rear wall of said forward open end. The said forward bag end then enters the finishing rolls, hereinafter described, by reason of which the bottom is completed, and just before this time the front. gripper 68|and the middle gripper 69, in the order named, release the bottom. 1`he paste is -applied to the -bottom being formed between the taking hold of the bottom by the front gripper 68 and the taking hold of the bottom by the rear gripper 70.

Suitablyisupported in front of the cylinder 48 is a paste receptacle 97, and carried by said paste receptacle is a roller 98 by which paste is transferred from the interior ofthe receptacle to a roller 99' which latter applies the paste to the bottom portions of the bag lengths in the manner before described, as the said bag lengths pass the roller 99. The roller 99 is provided with blades 9Wl to tuck the bag length into the cylinder groove 06, and is also provided witha blade 99b to tuck the bag length into the cylinder groove 67. Hence said` roller 99 serves Athe two-fold function of pasting and tucking, which is an important advantage. The paste-transferring roller 98 is, of course', provided with grooves complementaryA to and adapted to receive then blades of the roller 99, one of said grooves being shown in Fig. 17. Supported above the rollers 98 and 99 are guards 99, Figs. 9 and 17, which serve the'two-fold purpose of holding the ends o'f the bag lengths away from the paste and facilitating the passage of said ends between the/lower part of the belt 91 and the cylinder..l Y

Located below the forward portion of the cylinderI 48 is a transverse vshaft 100, equipped with two miter gears 101 and also with two cams 102. suitably `supported above the said tshaft 100 are miter gears 103, which are intermeshed with the gears 101, and extending through the said gears .aio

posed between the enlargements 107u and collars or other suitable abutments 108a fixed on the shafts. The said depression of the sweeps 105 is provided in order toenable the blades 74 and 75 and the carriages y 73 to clear the said'sweeps 105 incidental .to

the rotation of the cylinder. After passing and being operated on by the sweeps 105,' the bags pass` over a. Guide j107, `Fi 17 t'. e., between said guide and the cy inder; said guide serving to turn back the frontwall of the forward open endiof the'zbag. The bags 'then pass under a stripper 108 which is so denominated because' its 'free 'end extends into the continuous groove 2V Yof the cylinder 48 and serves to assure the.

ba S leaving the periphery of the cylinder an passing downward between the two up per finishing rolls 109. 4To prevent the bags from passing between the rolls 109 and then' downward to the floor, we provide the finishing rolls 109 and a third nishing roll 110 with circumferential grooves 111, and

be ts 114 and 115 to the receptacle 116 located withi'n the machine with a view to economizingfflolor space which is an important advantage in paper Abag factories. From the receptacle 116 the finished bags are taken byan attendant ofthe machine. The belts 114 and 115 are carried by driven rollers 116 and idler rollers 117, 1

It will be understood from the foregoing that the detailed operation ascribed to the group of features or organized mechanism carried by the cylinder 48 and shown in the central 'portionof Fig. 4, is common to the other five, similar groups of features or or ganized mechanisms carriedby the cylinder 48.

Motion is transmitted from the shaft of the lower draw-roll 34 to the shaft of thefountain roller 42 by the gear train best shown in Figs. 15 and 16, which gear train is arranged adjacent the left-hand side of the machine, looking forward, and comprises al spur gear 118 fixed on the shaft of roll 34, a spur gear 119 itermeshed with the gear 118 and having an in'ner cam face 120, and a gear 121 fixed on lthe shaft of the fountain roller 42 and intermeshed with the gear 119. Extending loosely through the center of gear 119visa fixed bracket 122, and fulrumed on the said bracket is a lever 123. This lever carries anti-friction wheels 124 which are opposed to the cam rotate-*7 face of gear 119, whereby the` lever is oscillated incidental to rotation of said gear. One arm of said lever 12,3 is disposed in a circumferentially grooved portion 125 of the shaft of fountain roll 42,and hence the said oscillation of the leverfwill oe attended' by reci rocation of the fountain roll 42 and the e cient distribution vof ink therefrom on the yinkingroll 41.- Aside from the features mentioned, the means for supplying ink to the form 40 may be of any type or construction consonant with the purpose of our invention. r

The upper plate 29is shown in F ig. 12ans providedl with an opening 29, but this opening `is immaterial, and may therefore be omitted without aecting ournvention. Particular reference will now be made to Figs. 18 `to 22 of the drawings, and from the same lit will bel understood that the mid-4 dle gripper 69 of each of the six organized' mechanisms carried byl 'the cylinder 48 is moved forward to grip a bagA length by lease. the bag length by the vcooperation of anl arm 127, fixed on therock-shaft 128 of t-he gripper or formed integral with said rock-shaft 128, and a fixed cam 129 arlsprings 126, and is moved rearward to rel ranged within the cylinder and adjacentthe left-hand side thereof, looking. forward. In Fig. 21 the six 'grippers 69 and their arms 127 are shown as grouped about thev fixed or stationary cam 129; the said arms 127 being provided, with. anti-friction wheels 130 to facilitate and render easy their movements around the cam. It will also be noted here that the springs 126 serve to press the grippers 69 forward when the positions Iof .the arms 127 relative to the` cam 129 permit, and that the cooperating cam 129 and arms 127 operatel at the .proper time, see the bottom of Fig. 21, to move the grippers 69rarward against the'action of the springs 126 to releasethe bags.. The gripper rf'0--z'. e., the rear gripper 70, Vof each of the organized .mechanisms carried' by the cylinder 48, is provided with a. rockshaft 131, and dfixed with respect to said rock-shaft is an arm 132, equipped with an anti-friction wheel 133. The sixrear grippers 70 and their arms 132 are shown' 1n Fig. 18, as grouped about the stationary cam 134 by which the rear grippers are opened ormuved rearward to .release the bags. #The said rear grippers 70 are moved for-war".v to grip the bags by springs 135; when the arrangement of the levers 132 relative lo the stationary cam 134 permits." The grippers Stfa'. e., the forward grippers of the organized mechanisms are provided with rock-shafts 136, and fixed' with respect ward :grippers' 68 and their arms 137 are" .shown in Fig. 18, as grouped about the sta-A 

